Type-writer.



J. 17. MURDOGK & w; 'J. MOFARLAN.

TYPE WRITER. A'PPLIQATION IILED JUNna, 1911.

1,04 ,354, Patented Dec. 31,1912

INVENTO 5 4% Mi i J. F. MURDOC-K & W'. J. MOFARLAN.

TYPE WRITER.

APPLICATION FILED JUNE 9, 1911.

Patented Dec. 31, 1912.

2 SHEETS-SHEET 2.

IN V15 N TOR M;

WITNESSE )3 NUW & TTORNE y.

STATES PATENT OFFICE.

Joan E. Melanesia Ann WILLIAM J. M'CFARLAN, or PATERSON, NEW JERSEY; SAID MURDOOK ASSIGNOR TO SAID MQFARLAN.

. TYPE-WRITER.

Specification of Letters Patent.

Patented Dec. 31 1912;

Application filed June 9, 1911. Sria1 No. 632,300.

To all whom it may concern:

"Be it known that we, JOHN F. MURDOCK and WILLIAM J. MCFARLAN, citizens of the United States, and residents of Paterson, in the county. of Passaic and State of New Jersey, have invented certain new and useful Improvements in Type-Writers, of which the following isa specification.

Ourinvention relates to improvements in typewriters.

The objects of our invention, are first to i .provide a means for moving the platen of fthe typewriteracross the machine by the pressurev on a key, instead of making the hand to travel the full length of the movement. as in theordinary machine, as this movement is very unhandy 1n machines with an eighteen or twenty-four inch platen,

. where it is sometimes necessary to crossthe hands to doait. Second to automatically,

as a separate attachment to an machine without making any additlona holes or change in the original machine. We attain these objects by the mechanism as illustrated in the accompanying-drawings, in 'which Figure 1 is a side elevation of an ordinary typewriter with our invention attached and forming a part thereof. Fig. 2 is a plan of our invention as shown in Fig. 1 showing I a only the ends of the machine.

' vation of the spacing-attachment.

Fig. 3 is a front-view of Fig. 2. a Fig. L is a side ele- Fig. 5 is a frontview of the spacing attachment. Fig. 6 is a plan of -Fig. 4. Fig. 7 is ,a diagram showing the different positions of tl e line spacing levers as acted upon by e re ulating ban imilar numerals ofreference indicate corresponding parts throughout the several views. 5

. In the drawing 1 represents the body or frame fof the typewriter, on which the platen 2 with the carriage is shown, which moves the required distance .on the guide 3. Theseparts in connection with the linespacing lever 4, which is operated by the hand,

are as they are on the ordinary typewriter.-

In the ordinary machine in moving the carriage to the right or to operate the line spacing the operator does it through the lever 4. This is'inconvenient in machines with long carriages, such as used on billing machines often necessitating the crossing of the hands in so doing. In our invention the line spacing and the moving of the carriage is within the range of the key board.

The invention is so constructed that the screws that are already in the machine together with other clamped portions are ,the means of attaching it to'the machines'that are in use or have been constructed without it; or the device can be incorporated in the construction of a new machine. A frame 31 having slots and holes for holding studs, on which the different wheels and levers are, is securedto the main machine by hooked clamps 32 hnd with screws in the same. A grooved wheel 15 with a pinion 18 on the hub of said wheel revolves freely on the stud 16 which is secured to the frame 31 in the slots 33. Secured, to the frame 31 is the stud,20 on which the gear 19 which nieshes with the pinion 18 revolves' To this ."QQHI' 19 there is a lever 21 secured, by means of which it is operated. The angled lover or bell crank consists of two, arms 27 and 28 connected by a hub-which moves freely on -a stud 30. The bell crank is secured to the frame 31, on the end of the arm 28 the piece or key 22? is located and by means of this key the carriage is operated,,and the key 29 is adjacent to the plane of the key board. On

the end of the arm 27 there. is a grooved segment 24 with a? hole 26 in one end to 'secure the cord, band-or rod 25 which has its other end connected by a screw and clamp 23. at the end of the lever 21. On the left hand end of the carriage there is a bracket 5 with a hooked part 6 which. secures it to the carriage by means 'ofa screw 8, in the other end of the "bracket 5, opposite th'e hooked part" there is a hole 7 and a screw for securing one end of a band or cord of some'durable and flexible material. This band or cord 9 passes along the back beneath the carriage and over a grooved wheel 11,.secured to the" main machine by the bracket 12 on'the right side of the machine; from this. point the band passes to the left of themachine and I over the grooved pulley 1,3. This point on the cord is indicated by 10. The pulley is '105 secured to the left side of the machine by the bracket14, the band 10 passes over 13 onto the grooved pulley 15 and is secured through the, hole58 in its rim.

To operate the carriage from .theleft to 1 and over .the pulleys 11 and13f The the bellcrank to the segment 24 and thence by means of the cord 25 to the lever 21,

' causing the gear .19 to revolve the gear pinion '18 and thus the cord is wound around the rim of the pulley 15 drawing the car'- riage to the right by means of the cord 9 spacing of the lines which acts in connection with the moving of the earriageis constructed as follows: The bracket 52 has a hooked portion 59 at its lower end which passes under the frame-of the machine and is secured to the top of the said machine by means of screws-which are in the construction of the machine. On the bracket 52 there is a sleeve 51 in which the bar. 50 can be raised or lowered. Onthe'lower part of the bar 50 there is'a key 55 on which there is a spring and a catch 57, this catch enters the notches a, b, 0 and d in the piece 53; this piece 53 is securedby screws to the bracket 52. The catch 57 is'held in the notches by the spring 56 when set to the desired position. There is a slide 60 secured to the bar 50, which slides between the pieces 53 a-nd the lower portion of the bracket 52, for the purpose of keeping theiip'right bar 50 from turning when raised or lowered. In the upper part of the bar 50 there is secured a hinged rod 45, consisting of the portion 46 hinged to the 'piece 45 at the point 47 the said hinge working only in one direction, and remaining straight when drawn back by the spring 48, oneend of which is secured to the part 46 and the other ,"to 45 by the wire bracket 49. The bar 46 coming in contact with the lever 34 when the carriage is movedfrom the left to the right causes the work on the platen 2 to space one, two or three lines as desired. If it is desired" to space three lines at every movement of the car-,

ria'ge from the left to theright, the position of the bar 50 is as shown in Fig. 5; when two lines are tovbe spaced the piece 55 is drawn out of the notch d and the bar 50 is raised until the catch 57 enters the lines in Fig. 5 the rod 46 will then miss the lever.'34 and be out of action. difierent positions of the lever 34 t which it is pressed down to cause the spacing is shown in Fig. 7. When three lines are to by spaced the position. ,of the rod '46 is indicated by 43 and the lever 34 mu s t be pressed downward from its usual position '36 to the position as indicated by 39 by a sliding contact with the rod 34; the position 38 for a two line spacing and 37 for a one line spacing. When the carriage is moved, from the-right to the left the. hinged rod takes the positionas shownv by the dotted lines in Fig. 6' and-when'fthe lever 34 has passed,.' the spring 48 draws the rod 46 back'to its. straight positiorn It can thus be seen that the s acing when set to the desired number of ines, acts automatically with the movement of theqcarri'age; The lever :34 is attached by clamping with screws, the portion 85 over the lever 4.

Having thus described our invention what we claim and desire to-secure by L t. .ters Patent is In a typewriter attachment the combination with .a supplemental frame attached to the machine, of a bell crank-lever pivot- .ally mounted on said frame; anoperatlng key on oneend of said ,bell crank lever and located adjacent to'the keyboard a grooved segment attached to the other arm of said bell crank lever; a gearrotatably mounted on said frame; a lever secured to said gear;

a cord connecting said leverwith said segment; a pinion and a grooved wheel con -nected at their hubs andpivotally mounted on said frame, said pinion meshing with said gear; a bracket secured to the carriage; a band connecting the bracket with the grooved wheel; and grooved idlers mounted on the main frame of the machineover which the band passes as -set.forth and described.

Signedv at Paterson in the county of Passaic and State of New Jersey this twelfth day of May A. D. 1911.

' JOHN F. MUnDooK.

WILLIAM J. MO'FARLAN.

Witnesses .HEBBERT GO B'LE, JOHN B. KANE, Jr. 

